Medical Imaging MCQ

Q1. Which imaging modality uses ionizing radiation to produce images?

Q2. CT scan was invented by:

Q3. Which medical imaging technique has the best soft tissue contrast?

Q4. The primary energy source of PET (Positron Emission Tomography) is:

Q5. Which contrast agents are commonly used in MRI?

Q6. In ultrasound imaging, the term "Doppler effect" is used to measure:

Q7. Which of the following does NOT use ionizing radiation?

Q8. The first step in X-ray imaging is:

Q9. Which of the following imaging techniques uses sound waves?

Q10. Which of these medical imaging methods provides 3D cross-sectional images?

Q11. MRI contrast agents improve images by:

Q12. In medical imaging, “spatial resolution” refers to:

Q13. Which imaging technique is contraindicated in patients with pacemakers?

Q14. The unit Gray (Gy) is used for measuring:

Q15. Which modality is most commonly used to image bones?

Q16. Which imaging technique uses radioisotopes?

Q17. Attenuation coefficient in imaging is related to:

Q18. What does the TI-weighted MRI image emphasize?

Q19. Which imaging method is fastest?

Q20. Doppler ultrasound can evaluate:

Q21. In CT imaging, Hounsfield units measure:

Q22. Positron emission tomography detects:

Q23. Which imaging uses ionizing radiation and contrast media?

Q24. Which of the following factors affect image quality?

Q25. The principle of Echocardiography is:

Q26. Which modality is best for soft tissue visualization?

Q27. Functional MRI primarily measures:

Q28. Which is NOT a risk of X-ray imaging?

Q29. A radiotracer commonly used in PET scans is:

Q30. X-rays with shorter wavelengths have:

Q31. Magnetic resonance signal originates from:

Q32. In ultrasound, the attenuation of sound depends on:

Q33. Which of the following imaging technologies is radiation-free?

Q34. The SPECT imaging technique uses:

Q35. In diagnostic imaging, contrast media are used to:

Q36. Which of the following advanced imaging shows metabolic activity?

Q37. Doppler shift is used in ultrasound to measure:

Q38. Ultrasound gel is applied to:

Q39. Tomography refers to:

Q40. Radiation exposure in diagnostic imaging is measured in: